The AirTAC GFR40010AF3T AirTAC Filter Regulator, 3/8 in NPT is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" ports, a automatic drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR40010AF3T is a size 400 filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This configuration carries a 3/8 in NPT port, an automatic drain that ejects collected condensate without manual attention, the standard 40 um filter element, an embedded square gauge reading in bar, and a mounting bracket. The polycarbonate bowl lets you see the condensate level at a glance, and the standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi) with this drain type. Maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, PT as the standard thread and G (BSPP) or NPT as order options, a choice of automatic, manual or differential-pressure drain, an optional 5 um (code W) filter element, optional round external gauge, and an optional reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR40010AF3T AirTAC Filter Regulator, 3/8 in NPT |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, bar scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR400 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Feeding clean, regulated air to the cylinders and actuators on a carton-forming and sealing line, with the automatic drain coping with condensate between shift checks.
Conditioning the supply to pneumatic conveyor diverters and gate actuators, where steady downstream pressure keeps product handling consistent through the shift.
Providing filtered, adjustable air to bench-mounted test rigs and pilot plants, with the bar-scale gauge giving a clear local setpoint reading.
Size 400 with a 3/8 in port sits in the upper-middle of the GFR range; step up to size 600 or down to size 300 if your line volume points that way, and match the port to your existing pipework (NPT here, with G/BSPP and PT available to order). The automatic drain on this unit suits installations that are not checked daily; choose manual drain where you prefer controlled, scheduled blowdown, or differential-pressure drain as the catalogue default. The standard 40 um element suits general plant air; specify the 5 um W option where finer filtration is needed. The embedded square gauge reads in bar; MPa and psi scales are also available, and an external round gauge is optional. A mounting bracket is included.
Because flow is published as curves rather than a single rating, we do not quote a rated flow number here. Send us your application details and we will confirm sizing against the datasheet before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves, not as a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow and datasheet figures for this exact unit on request before you order.
This unit is fitted with an automatic drain, which ejects collected condensate on its own - useful where the unit is not inspected daily. The catalogue also offers manual drain and differential-pressure drain (the default) on the GFR family; the regulation range quoted (0.15-0.9 MPa / 20-130 psi) applies to the automatic and differential-pressure drain types.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.